surface-mount design

It delivers the reliable high-voltage spark necessary to initiate the combustion process in Carrier gas-fired air handlers and rooftop units

Frequent ignition failure or "no flame" lockout codes often stem from carbon buildup or ceramic fractures on the existing rod

There is no functional or technical difference between these two part numbers

Advanced Reliability: Features stainless steel bellows and a weather-resistant IP20 enclosure for long-term performance in demanding mechanical rooms

Williams P321900 Ignition Control 318820-201 surface-mount designThe Williams P321900 Ignition Control is a dedicated OEM replacement part engineered for precise sequence management in gas fired heating equipment. As the direct successor to the P32190, this electronic ignition module provides the necessary logic for safe pilot or main burner light off. This control is frequently utilized in Williams Monterey furnaces and Forsaire wall heaters, where maintaining specific timing for trial for ignition and flame